Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Copper bar and aluminum bar connecting method and device for battery

A connection method and a technology of a connection device, which are applied to battery pack components, circuits, electrical components, etc., to achieve the effects of ensuring stability, simple molding, and facilitating popularization and application

Inactive Publication Date: 2018-05-18
桑顿新能源科技(长沙)有限公司
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, and provide a method and device for connecting battery copper bars and aluminum bars, in which copper bars and aluminum bars are hot-pressed and bonded with nickel sheets, and the copper bars and aluminum bars are directly connected to each other. Connection, converted to the same material connection of nickel and nickel, can avoid electrochemical corrosion caused by connection of different materials, and avoid poor connection or interruption of power battery during use. At the same time, the hot-pressed nickel sheet can improve the copper and aluminum bars Hardness, to prevent the long-term collision of copper and aluminum caused by mechanical vibration, resulting in the collapse of the aluminum row, effectively improve the connection between the copper row and the aluminum row, improve safety, and ensure the stability of the power battery

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Copper bar and aluminum bar connecting method and device for battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] According to a method for connecting battery copper bars and aluminum bars described in this embodiment, at least one layer of inert metal layer is bonded to the outer surfaces of the copper bars and aluminum bars to be connected by hot pressing. , the inert metal layer of the copper row is closely attached to the inert metal layer of the aluminum row.

[0030] Specifically, when the power battery is connected, the connection between the copper bar and the aluminum bar is usually directly connected, or copper-aluminum composite material is used for connection, or nickel is plated on the copper bar and the aluminum bar. Chemical corrosion, collapse of aluminum row, etc. In the present invention, at the position where the copper row and the aluminum row are connected, at least one layer of inert metal layer is directly bonded through a hot pressing process. Preferably, only one layer is used when connecting the copper row and the aluminum row. The inert metal layer conne...

Embodiment 2

[0033] Such as figure 1 As shown, a battery copper bar and aluminum bar connection device described in this embodiment is prepared by the method of the first embodiment above, wherein the connection device includes copper sheets, aluminum bars 2, spacers 3, copper sheets and The aluminum row 2 is connected and fixed on the pad 3, and a layer of nickel layer is bonded to the outer surface of the connection between the copper row 1 and the aluminum row 2. When connecting, the nickel layers of the copper row 1 and the aluminum row 2 are closely attached to each other. The copper sheet and the aluminum row 2 are fixed on the pad 3 by bolts, the pad 3 is provided with screw holes, the copper row 1 and the aluminum row 2 are provided with alignment screw holes, the pad 3 is an aluminum pad 3, and the copper row 1 The connection is completed by fixing the aluminum row 2 to the aluminum spacer 3 through the Phillips screw 4. In order to ensure the stable connection of the spacer 3 an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a copper bar and aluminum bar connecting method and device for a battery. Nickel sheets are bonded to a copper bar and an aluminum bar in a hot-pressing manner, and direct connection of the copper bar and the aluminum bar is converted into connection of the nickel-nickel same material, so that electrochemical corrosion caused by connection of different materials can be avoided, the condition of poor connection or connection interruption of a power battery in use is avoided, meanwhile, the hardness of the copper bar and the aluminum bar can be improved through the hot-pressed nickel sheets, the problem of aluminum bar collapse caused by long-term collision of copper and aluminum due to mechanical vibration is solved, the connection of the copper bar and the aluminumbar is effectively improved, the security is improved and the stability of the power battery is ensured.

Description

technical field [0001] The invention belongs to the field of power batteries, and in particular relates to a method and a device for connecting battery copper bars and aluminum bars. Background technique [0002] Now that electric vehicles are becoming more and more popular, the national policy requires higher and higher energy density of the battery system, forcing the battery PACK to be as lightweight as possible while meeting the performance requirements. However, copper is the main material for the electrical connection of the battery PACK. And aluminum materials will be selected differently according to the characteristics of the battery PACK structure. If the structural size allows, try to choose an aluminum bar with a lower density and lighter weight. In other cases, a copper bar with a stronger flow capacity will be used, resulting in In the same battery system, copper bars and aluminum bars are connected. Copper and aluminum are used as the circuit carrier through ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/20H01M50/514H01M50/522H01M50/526H01M50/571
CPCH01M50/502Y02E60/10
Inventor 胡联亚任旭生王会敏颜健张惟栋杨刚刘刚
Owner 桑顿新能源科技(长沙)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com